Torres del Paine as the best place trekking in South America
According to the site recorriendo.com qualifies as first the route of the W in Torres del Paine
They are 55 km. (about) those who must travel to say "Yes, I completed the W of the Torres del Paine ", one of the circuits most desired by walkers worldwide.
Definitely the best place for trekking in South America. Source: Recorriendo.com